Coupling system



Jan. 8, 1935.

L. WALTER COUPLING SYSTEM Filed Oct. 16, 1933 INVENTOR LU DWIG WALTEPw 4 M A ORNEY Patented Jan. 8, 1935 UNITED STAT ES PATENT "OFFICE coUrmNG SYSTEM Lndwig Walter, Berlin, Germany, to

'l'elefunken Gesellschaft f'ur Drahtlosc Telegraphic m.b. 11., Berlin, Germany,.a corporation e, 1 n J Application mm- 16, was, Serial No; 693,115

r In Germany Sept.ember 30, 1932 4 claims: (or. ass-3s) This invention relates to an improved; high great number of connecting points, and where or radio nequemxfmble system by means of the numberotlinescnmptiaedintbe two gr ups which an effective change of circuits can be made do, not; widely difler from mhi other; a without impairing the efliciency of the system. Now, the present invention contains a suitable 5 An object of the invention is to provide a cirarrangement for the case where one group of 5 cuit arrangement and coupling system adapted lines contains but a few, say, 3 or 4 lines or leads, to unite at will the downleads of a system comand the other one a considerably greater number, prising a plurality of energy transmission lines say, from to 20. The flexible connecting wires with any desired one of the transmission lines or conductors constituting the movable circuit 10 or leads of another system of similar nature. means between both groups, according to this 10 Such an arrangement may be used, for example, invention, are passed over a curved surface to in receiving equipments for radio intelligence which the lines of one of the systems are brought; transmission on short waves. Where such systhe ends of the lines of the other system are terns are extensive, they usually contain a comdisp ed upon an evolvent or involute which the paratively large number of aerials and also a s of the OOImecting Wires hanging down V 15 plurality, but mostly dissimilar number, of rethe said curved surface describe as they are ceivers, and there arises a practical requirement moved. to connect anyone of the receivers with any de- As shown in the drawing the cables 1 which sired antenna. may run to radio receivers or transmitters are laid A further object of the invention is to termiadiacently over a narrow drum 2 having a curved 20 nate a number of electrical lines or cables with surface 6, the drum being suitably supported on a a series of separable connectors or socket memsupport '7 which, as shown, may be a wall. The bers so disposed that certain portions thereof ends of the cables passing over the drum have are stationary and arranged in such a manner secured thereto the terminal or coupler members3 that any one thereof may be engaged by a matwhich cooperate with the cable heads 4 of the an- 25 ing socket attached to one of the lines without tenna down leads 5. The separable or mating conchange in the length or inductance of said line. nector or terminal members 3 and 4 may be of Other objects of the invention will become apany desired type but are preferably of the kind parent to those skilled in the art as the descripdescribed in my aforesaid application, Serial No.

tion thereof proceeds. 650,645. The stationary portions 4 of the con- 30 One embodiment of the invention is shown in nectors are arranged upon a curve 8 and held in the accompanying drawing in which; such position by any suitable supporting means Figure 1 1s a side elevation of the couplin (not shown), the curve 8 being an involute of the system; curved surface 6 of drum 2. As a result of the Figure 2 is a front elevation of the same; and, described arrangement, each connector 3 is able 35 i ure 3 is a Cross sectifln Of One 10ml of cable to reach each of the stationary connectors 4 con- Wh h may be emp yed the Coupling y veniently and without change in the inductance n y application, Serial ,6 5, fi of the transmission line 1 to which it is connected. Ja a y 1933, Of which this application is E The drum 2 is made of sumcient width to ac- 40 c nt a in Part, I have disclosed Oircuit commodate the desired number of cables 1, which arrangement which serves to connect selectively may b placed in close proximity t each other a o frequency feed lines omprised in a syste and its diameter or radius of curvature is governed consisting of a plurality of such lines, with the by t i i radius of curvature of t es down-leads of another system- Such an centric cable parts used as the connecting cables arrangement is used in equipments and installa- 1 t 111 be understood t t t lower ends of 45 (110115 Wh e a relatively great number of the antenna leads 5 will run to the several antenna? is to be connected with a different numt of t t ber of receivers or transmitters. The embodi- The radio frequency cables 1 and 5 may be of ment disclosed in the above patent application the form shown in my aforesaid application in which the tenhihal Points the antenna prising two concentric conductors 31 and 32 sep- 50 lines and the terminal points of the receiver or amted at intervals along the length of the cable transmitter leads are each located upon the pebyihsulating spacers riphery of a circle or at the corners or angles Having described my invention, what I claim f a po y o is esp c a y w l su in instellaand desire to secure by Letters Patent is:

tions in which at both ends there are a relatively 1, In combihatmn m a device r the class 55 scribed, a flexible electrical transmission cable having a separable connect-or secured to one end thereof, a curved surface in contact with a limited portion intermediate the ends of said cable, a plurality of cables each of which is terminated by a connector adapted to engage said separable connector, said terminating connectors being arranged on a curve which is an involute of said curved surface.

2. In combination in an electrical transmission system, a plurality of flexible cables each having a separable connector secured to one end thereof, a supporting body having a-curvedsurface in contact with a portion of each'of said cables and intermediate the ends thereof,'a1p1urality of stationary connectors adapted to be selectively engaged by any one of said'separable connectors and arranged on a curved surface which is an involute of said first named curved surfaceand an; electrical transmission line connected to each of said stationary connectors; a a I 3. In atran'smission system-the combination of a body havinga-convex curved surface, means for supporting said body, a plurality of radio frequency transmission cables each having a portion in contact with said curved surface, a terminal connector secured to the end of each of said transmission cables, a plurality of stationary connectors adapted to be selectively engaged by either of said terminal connectorsan'd arranged; in the form'of a concave curve and a' radio" frequency transmission line connected to each of said stationary connectors.

4. In a; transmission system, the combination of a body having a surface in the form of a portion of a cylinder, aplurality of electrical transmission cabl'es engaging said surface and each having a separable connector secured to one end thereof, a plurality of similar terminal connectors arranged on a curved surface under said body and arranged to be selectively engaged by either of said separable connectors, and an electrical conductor connected to each of said terminal con- 20 

